/*
 * Copyright 2022 The Open Islands Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.openislands.oi.rpc;

import org.openislands.oi.config.MyNodeInfo;
import org.openislands.oi.constant.Dict;
import org.openislands.oi.rpc.base.BaseExtended;
import org.openislands.oi.rpc.base.Executor;
import org.openislands.oi.rpc.base.Extended;
import org.openislands.oi.rpc.base.ItemExtended;
import org.openislands.oi.rpc.http.HttpRequestListener;
import org.springframework.http.HttpHeaders;
import org.springframework.http.client.ClientHttpRequest;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;


@Component
@SuppressWarnings("unused")
public class HttpRequestHeaderListener implements HttpRequestListener {
    @Resource(type = MyNodeInfo.class)
    private MyNodeInfo myNodeInfo;

    @Override
    public Object onEvent(Executor<?> executor, ClientHttpRequest clientHttpRequest) {
        Extended<Class<?>, ItemExtended> extended = executor.extended();
        ItemExtended baseExtended = extended.get(BaseExtended.class);
        HttpHeaders headers = clientHttpRequest.getHeaders();
        headers.add("src-node-id", myNodeInfo.getNodeId());
        headers.add("dest-node-id", baseExtended.getElement(BaseExtended.TARGET_MARK));
        headers.add("src-service-name", System.getProperty(Dict.SERVER_NAME));
        return executor;
    }
}
